CN106954963B - Door closing device of safety storage cabinet for inflammable liquid - Google Patents
Door closing device of safety storage cabinet for inflammable liquid Download PDFInfo
- Publication number
- CN106954963B CN106954963B CN201710273937.XA CN201710273937A CN106954963B CN 106954963 B CN106954963 B CN 106954963B CN 201710273937 A CN201710273937 A CN 201710273937A CN 106954963 B CN106954963 B CN 106954963B
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- cabinet door
- cabinet
- fixed plate
- door
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 10
- 230000009471 action Effects 0.000 claims abstract description 5
- 229910001335 Galvanized steel Inorganic materials 0.000 claims description 3
- 239000008397 galvanized steel Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 230000008569 process Effects 0.000 claims description 2
- 230000000903 blocking effect Effects 0.000 claims 3
- 230000006872 improvement Effects 0.000 abstract description 2
- 230000002146 bilateral effect Effects 0.000 abstract 1
- 239000000126 substance Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 231100000481 chemical toxicant Toxicity 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B96/00—Details of cabinets, racks or shelf units not covered by a single one of groups A47B43/00 - A47B95/00; General details of furniture
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B81/00—Cabinets or racks specially adapted for other particular purposes, e.g. for storing guns or skis
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/50—Power-operated mechanisms for wings using fluid-pressure actuators
- E05F15/53—Power-operated mechanisms for wings using fluid-pressure actuators for swinging wings
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/70—Power-operated mechanisms for wings with automatic actuation
- E05F15/72—Power-operated mechanisms for wings with automatic actuation responsive to emergency conditions, e.g. fire
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2999/00—Subject-matter not otherwise provided for in this subclass
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
- Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics
Landscapes
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Power-Operated Mechanisms For Wings (AREA)
- Drawers Of Furniture (AREA)
Abstract
The invention discloses a door closing device of a safe storage cabinet for inflammable liquid, and belongs to the technical field of storage cabinets. The inside bilateral symmetry of cabinet of storing install the cylinder, and the cylinder passes through the cabinet door connection of cylinder pull rod and relevant position, the inside upper end of cabinet of storing install the fixed plate, head rod front end and left side cabinet door fixed connection, sixth connecting rod front end and right side cabinet door fixed connection, the fixed plate left side be provided with stop nut, the fixed plate right side be provided with the slide rail, the fixed plate front end be provided with the pin, the fourth connecting rod on be provided with the fixed slot, reasonable in design drives the safe cabinet door through the cylinder, when the cabinet door is closed, utilize the interact between six connecting rods and the track, can close left side cabinet door earlier in order slowly, close right side cabinet door again, whole action is timely, safe orderly, great improvement the security of inflammable liquid storing cabinet.
Description
Technical Field
The invention relates to a door closing device of a safe storage cabinet for inflammable liquid, and belongs to the technical field of storage cabinets.
Background
The preservation of dangerous and inflammable substances is an important problem, inflammable and dangerous chemicals such as lack of safe storage environment easily cause fire or leakage of toxic chemicals, endangering the life and property safety of people. Because the storage cabinet is used for storing high-risk articles, the safety performance of the cabinet door of the storage cabinet needs to be enhanced, and most of the storage cabinets are placed by using common storage cabinets in schools, scientific research institutions and enterprises at present. The existing storage cabinet is not provided with an automatic door closing device, and when a fire disaster occurs, the cabinet door cannot be automatically and orderly closed, so that the safety is insufficient.
Disclosure of Invention
The invention aims to solve the technical problem of providing a door closing device of a safe storage cabinet for flammable liquid.
The invention relates to a door closing device of a safe storage cabinet for inflammable liquid, which comprises an air cylinder 1, an air cylinder pull rod 2, a fixed plate 3, a first connecting rod 3-1, a second connecting rod 3-2, a third connecting rod 3-3, a fourth connecting rod 3-4, a fifth connecting rod 3-5, a sixth connecting rod 3-6, a limit nut 3-7, a fixed groove 3-8, a sliding rail 3-9, a flange 3-10, a first fixed strip 3-11, a second fixed strip 3-12 and a third fixed strip 3-13, wherein the air cylinder 1 is symmetrically arranged at two sides inside a storage cabinet a, the air cylinder 1 is connected with a cabinet door at a corresponding position through the air cylinder pull rod 2, the fixed plate 3 is internally provided with the fixed plate 3, four sides of the fixed plate 3 are sequentially provided with the flange 3-10, the first fixed strip 3-11, the second fixed strip 3-12 and the third fixed strip 3-13, the fixed plate 3 is movably connected with the fourth connecting rod 3-5 through the flange 3-10, the first fixed strip 3-11, the second fixed strip 3-12 and the third fixed strip 3-13, the top end of the third fixed plate 3-3 and the fourth connecting rod 3-3 are sequentially connected with the fourth connecting rod 3-3 and the fourth connecting rod 3-3, the fourth connecting rod 3-3 is movably arranged at the top end of the fourth connecting rod 3-3 and the fourth connecting rod 3-3 is sequentially arranged inside the fixed plate 3-3, the front end of the first connecting rod 3-1 is fixedly connected with the left cabinet door b, the front end of the sixth connecting rod 3-6 is fixedly connected with the right cabinet door c, the left side of the fixing plate 3 is provided with a limit nut 3-7, the right side of the fixing plate 3 is provided with a sliding rail 3-9, the fifth connecting rod 3-5 is in sliding connection with the sliding rail 3-9, and the fourth connecting rod 3-4 is provided with a fixing groove 3-8.
Preferably, the flanges 3-10 and the fixing plate 3 are integrally formed and used for fixing the fixing plate 3 on the top of the box body.
Preferably, the first connecting rod 3-1, the second connecting rod 3-2, the third connecting rod 3-3, the fourth connecting rod 3-4, the fifth connecting rod 3-5, the sixth connecting rod 3-6 and the sliding rail 3-9 are all made of high-quality galvanized steel bars.
The invention has the beneficial effects that: its simple structure, reasonable in design drives the safety cabinet door through the cylinder, when the cabinet door is closed, utilizes the interact between six connecting rods and the track, can close left side cabinet door earlier in order slowly, closes the right side cabinet door again, and whole action is timely, safe orderly, great improvement the security of inflammable liquid storage cabinet.
Description of the drawings:
for ease of illustration, the invention is described in detail by the following detailed description and the accompanying drawings.
FIG. 1 is a schematic view of the mounting structure of the present invention;
FIG. 2 is a schematic view of a state structure when a cabinet door is opened;
FIG. 3 is a schematic view of a cabinet door in a closed state;
fig. 4 is a schematic diagram of a second structure of the cabinet door in a closed state.
Reference numerals: the air cylinder comprises an air cylinder 1, an air cylinder pull rod 2, a fixing plate 3, a first connecting rod 3-1, a second connecting rod 3-2, a third connecting rod 3-3, a fourth connecting rod 3-4, a fifth connecting rod 3-5, a sixth connecting rod 3-6, a limit nut 3-7, a fixing groove 3-8, a sliding rail 3-9, a flange 3-10, a first fixing strip 3-11, a second fixing strip 3-12, a third fixing strip 3-13, a storage cabinet a, a left cabinet door b and a right cabinet door c.
The specific embodiment is as follows:
as shown in fig. 1 to 4, the present embodiment adopts the following technical scheme: the storage cabinet comprises a cylinder 1, a cylinder pull rod 2, a fixed plate 3, a first connecting rod 3-1, a second connecting rod 3-2, a third connecting rod 3-3, a fourth connecting rod 3-4, a fifth connecting rod 3-5, a sixth connecting rod 3-6, a limit nut 3-7, a fixed groove 3-8, a sliding rail 3-9, a flange 3-10, a first fixed strip 3-11, a second fixed strip 3-12 and a third fixed strip 3-13, wherein the cylinder 1 is symmetrically arranged at two sides inside the storage cabinet a, the cylinder 1 is connected with a cabinet door at a corresponding position through the cylinder pull rod 2, the fixed plate 3 is arranged inside the storage cabinet a, the flanges 3-10, the first fixed strip 3-11, the second fixed strip 3-12 and the third fixed strip 3-13 are sequentially arranged on four sides of the fixed plate 3, the fixing plate 3 is fixedly arranged at the top end inside the storage cabinet a through a flange 3-10, a first fixing strip 3-11, a second fixing strip 3-12 and a third fixing strip 3-13, the upper end of the fixing plate 3 is provided with a first connecting rod 3-1, a second connecting rod 3-2, a third connecting rod 3-3, a fourth connecting rod 3-4, a fifth connecting rod 3-5 and a sixth connecting rod 3-6, the first connecting rod 3-1, the second connecting rod 3-2, the third connecting rod 3-3 and the fourth connecting rod 3-4 are movably connected in sequence, the fifth connecting rod 3-5 and the sixth connecting rod 3-6 are movably connected, the front end of the first connecting rod 3-1 is fixedly connected with a left cabinet door b, the front end of the sixth connecting rod 3-6 is fixedly connected with the right cabinet door c, the left side of the fixing plate 3 is provided with a limit nut 3-7, the right side of the fixing plate 3 is provided with a sliding rail 3-9, the fifth connecting rod 3-5 is in sliding connection with the sliding rail 3-9, the front end of the fixing plate 3 is provided with a flange 3-10, and the fourth connecting rod 3-4 is provided with a fixing groove 3-8.
Preferably, the flanges 3-10 and the fixing plate 3 are integrally formed and used for fixing the fixing plate 3 on the top of the box body.
Preferably, the first connecting rod 3-1, the second connecting rod 3-2, the third connecting rod 3-3, the fourth connecting rod 3-4, the fifth connecting rod 3-5, the sixth connecting rod 3-6 and the sliding rail 3-9 are all made of high-quality galvanized steel bars.
The working principle of the specific embodiment is as follows: when the cabinet door is opened, the cabinet door can be automatically closed by the work of the air pump, when the cabinet door needs to be kept in a normally open state, the top of the storage cabinet a is provided with a special fusing hook, the cabinet door is pulled to be kept in a normally open state, when an automatic fire disaster occurs, the temperature reaches 73 ℃, the fusing hook is broken, and the left cabinet door b and the right cabinet door c are closed inwards under the action of the cylinder pull rod 2.
The right cabinet door c drives the sixth connecting rod 3-6 to move, the fifth connecting rod 3-5 moves downwards along the sliding rail 3-9, in the process, the fifth connecting rod 3-5 cannot move downwards continuously due to being blocked by the fourth connecting rod 3-4, and meanwhile, the sixth connecting rod 3-6 cannot move due to the action of the flange 3-10, so that the right cabinet door c cannot be closed, as shown in fig. 3.
Meanwhile, the left cabinet door b sequentially drives the first connecting rod 3-1, the second connecting rod 3-2, the third connecting rod 3-3 and the fourth connecting rod 3-4 to move, the second connecting rod 3-2 forces the third connecting rod 3-3 to move leftwards at the limit nut 3-7 so as to drive the fourth connecting rod 3-4 to move leftwards together, the tail end of the fourth connecting rod 3-4 is far away from the outlet position of the sliding rail 3-9, the left cabinet door b is in a closed position, the fifth connecting rod 3-5 continues to move downwards along the sliding rail 3-9, and the right cabinet door c is closed as shown in fig. 4.
The foregoing has shown and described the basic principles and main features of the present invention and the advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (2)
1. The utility model provides a door closing device of safe storage cabinet of inflammable liquid which characterized in that: the novel air cylinder comprises an air cylinder (1), an air cylinder pull rod (2), a fixing plate (3), a first connecting rod (3-1), a second connecting rod (3-2), a third connecting rod (3-3), a fourth connecting rod (3-4), a fifth connecting rod (3-5), a sixth connecting rod (3-6), a limit nut (3-7), a fixing groove (3-8), a sliding rail (3-9), a flange (3-10), a first fixing strip (3-11), a second fixing strip (3-12) and a third fixing strip (3-13), wherein the air cylinder (1) is symmetrically arranged on two sides inside a storage cabinet (a), the air cylinder (1) is connected with a cabinet door at a corresponding position through the air cylinder pull rod (2), the fixing plate (3) is arranged inside the storage cabinet (a), the flanges (3-10), the first fixing strip (3-11), the second fixing strip (3-12) and the third fixing strip (3-13) are sequentially arranged on four sides of the fixing plate (3), the fixing plate (3) is arranged on the top of the storage cabinet through the flanges (3-10), the first fixing strip (3-11), the second fixing strip (3-12) and the third fixing strip (3-13), the upper end of the fixed plate (3) is provided with a first connecting rod (3-1), a second connecting rod (3-2), a third connecting rod (3-3), a fourth connecting rod (3-4), a fifth connecting rod (3-5) and a sixth connecting rod (3-6), the first connecting rod (3-1), the second connecting rod (3-2), the third connecting rod (3-3) and the fourth connecting rod (3-4) are sequentially and movably connected, the fifth connecting rod (3-5) and the sixth connecting rod (3-6) are movably connected, the front end of the first connecting rod (3-1) is fixedly connected with a left cabinet door (b), the front end of the sixth connecting rod (3-6) is fixedly connected with a right cabinet door (c), the left side of the fixed plate (3) is provided with a limit nut (3-7), the right side of the fixed plate (3) is provided with a sliding rail (3-9), the fifth connecting rod (3-5) is slidably connected with the sliding rail (3-9), the front end of the fixed plate (3-3) is provided with a fixed baffle plate (3-10), the front end of the fixed plate (3-4) is provided with a baffle plate (3-10),
the first connecting rod (3-1), the second connecting rod (3-2), the third connecting rod (3-3), the fourth connecting rod (3-4), the fifth connecting rod (3-5), the sixth connecting rod (3-6) and the sliding rail (3-9) are all made of high-quality galvanized steel bars.
2. The door closer of a safe storage case for flammable liquids as recited in claim 1, wherein: the working principle of the door closing device is as follows: when the cabinet door is opened, the cabinet door can be automatically closed by the air pump, when the cabinet door needs to be kept in a normally open state, the top of the storage cabinet (a) is provided with a special fusing hook, the cabinet door is kept in a normally open state, when an automatic fire disaster occurs, the temperature reaches 73 ℃, the fusing hook is broken, the left cabinet door (b) and the right cabinet door (c) are closed inwards under the action of the air cylinder pull rod (2), the right cabinet door (c) drives the sixth connecting rod (3-6) to move, the fifth connecting rod (3-5) moves downwards along the sliding rail (3-9), in the process, the fifth connecting rod (3-5) cannot continuously move downwards due to the blocking of the fourth connecting rod (3-4), meanwhile, the sixth connecting rod (3-6) cannot move due to the blocking of the blocking edge (3-10), the right cabinet door (c) cannot be closed, meanwhile, the left cabinet door (b) sequentially drives the first connecting rod (3-1), the second connecting rod (3-2), the third connecting rod (3-3) and the fourth connecting rod (3-4) to move downwards, the second connecting rod (3-2) drives the third connecting rod (3-4) to move leftwards, the fourth connecting rod (3-4) moves leftwards, the fourth connecting rod (3-4) is forced to move, the fourth connecting rod (3-4) is far away from the sliding rail (3-4), the left cabinet door (b) is in a closed position, the fifth connecting rod (3-5) continues to move downwards along the sliding rail (3-9), and the right cabinet door (c) is closed.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710273937.XA CN106954963B (en) | 2017-04-25 | 2017-04-25 | Door closing device of safety storage cabinet for inflammable liquid |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710273937.XA CN106954963B (en) | 2017-04-25 | 2017-04-25 | Door closing device of safety storage cabinet for inflammable liquid |
Publications (2)
Publication Number | Publication Date |
---|---|
CN106954963A CN106954963A (en) | 2017-07-18 |
CN106954963B true CN106954963B (en) | 2024-03-01 |
Family
ID=59483818
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201710273937.XA Active CN106954963B (en) | 2017-04-25 | 2017-04-25 | Door closing device of safety storage cabinet for inflammable liquid |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN106954963B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108030284A (en) * | 2018-01-08 | 2018-05-15 | 上海西斯贝尔工业科技有限公司 | Self-closing fire safety cabinet |
CN111111044A (en) * | 2019-10-29 | 2020-05-08 | 宁波宇东金属箱柜有限公司 | Intelligent warehouse fireproof system and method thereof |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN201480570U (en) * | 2009-06-30 | 2010-05-26 | 罗丛琳 | Safe storage cabinet for inflammable and toxic medicines |
KR20100087509A (en) * | 2009-01-28 | 2010-08-05 | 수 윤 | Door closer |
KR20110004342U (en) * | 2009-10-26 | 2011-05-04 | (주)에스엔에스 | The cabinet door opening and shutting equipment |
JP2013100655A (en) * | 2011-11-08 | 2013-05-23 | Ryobi Ltd | Door closer |
CN205400344U (en) * | 2016-02-17 | 2016-07-27 | 阳光电源股份有限公司 | Limit structure and install this limit structure's door |
-
2017
- 2017-04-25 CN CN201710273937.XA patent/CN106954963B/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20100087509A (en) * | 2009-01-28 | 2010-08-05 | 수 윤 | Door closer |
CN201480570U (en) * | 2009-06-30 | 2010-05-26 | 罗丛琳 | Safe storage cabinet for inflammable and toxic medicines |
KR20110004342U (en) * | 2009-10-26 | 2011-05-04 | (주)에스엔에스 | The cabinet door opening and shutting equipment |
JP2013100655A (en) * | 2011-11-08 | 2013-05-23 | Ryobi Ltd | Door closer |
CN205400344U (en) * | 2016-02-17 | 2016-07-27 | 阳光电源股份有限公司 | Limit structure and install this limit structure's door |
Also Published As
Publication number | Publication date |
---|---|
CN106954963A (en) | 2017-07-18 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US8443488B2 (en) | Door closer capable of realizing self-control positioning | |
CN106954963B (en) | Door closing device of safety storage cabinet for inflammable liquid | |
CN202997342U (en) | Middle and lower door interlocking device of switch equipment | |
CN204238757U (en) | A kind of sliding door | |
CN204252788U (en) | A kind of level and smooth door sealing mechanism | |
CN202850711U (en) | Automatic closing door device | |
CN105735816A (en) | Gravitational equilibrium solid wood vertical sliding window | |
CN207017831U (en) | A kind of linkage structure and the linkage unit including the structure | |
CN204645437U (en) | A kind of automatic fire control skylight and control system thereof being applicable to the cold passage of IDC machine room | |
CN103277022A (en) | Lifting folding door or lifting folding door or window | |
CN207699002U (en) | Safe and reliable elevator landing door device | |
CN207461775U (en) | A kind of door closer-holder of the safe storage cabinet of flammable liquid | |
CN204191453U (en) | Can self opening mouse blocking plate | |
CN207017875U (en) | A kind of wall of built-in sliding window | |
CN208446937U (en) | A kind of moveable medical archive cabinet | |
CN207947993U (en) | A kind of two-way automatic sliding structure of automation cabinet | |
CN209293660U (en) | A kind of preferable sill frame of protective performance | |
CN205248644U (en) | Operation box | |
CN204272527U (en) | Rail heart equipment box | |
CN202202675U (en) | Intelligent moisture-proof storage cabinet with mechanical interlock | |
CN221514527U (en) | Toxic product safety cabinet | |
CN204281011U (en) | Having a double meaning singly opening automatically locks protection door for construction elevator | |
CN206272096U (en) | A kind of switch cubicle valve mechanism | |
CN216921840U (en) | Steel construction threshold biparting protective airtight door that lives | |
CN219684329U (en) | Building steel structure welding machine |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |